package com.bobo.service.impl;

import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.bobo.constant.MessageConstant;
import com.bobo.constant.PasswordConstant;
import com.bobo.constant.StatusConstant;
import com.bobo.dto.EmployeeDTO;
import com.bobo.dto.EmployeeLoginDTO;
import com.bobo.dto.EmployeePageQueryDTO;
import com.bobo.entity.Employee;
import com.bobo.exception.AccountLockedException;
import com.bobo.exception.AccountNotFoundException;
import com.bobo.exception.PasswordErrorException;
import com.bobo.mapper.EmployeeMapper;
import com.bobo.result.PageResult;
import com.bobo.service.EmployeeService;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.util.DigestUtils;

import java.util.List;
import java.util.Objects;

@Service
public class EmployeeServiceImpl implements EmployeeService {

    @Autowired
    private EmployeeMapper employeeMapper;

    /**
     * 员工登录
     *
     * @param employeeLoginDTO
     * @return
     */
    public Employee login(EmployeeLoginDTO employeeLoginDTO) {
        String username = employeeLoginDTO.getUsername();
        String password = employeeLoginDTO.getPassword();

        //1、根据用户名查询数据库中的数据
        Employee employee = employeeMapper.getByUsername(username);

        //2、处理各种异常情况（用户名不存在、密码不对、账号被锁定）
        if (employee == null) {
            //账号不存在
            throw new AccountNotFoundException(MessageConstant.ACCOUNT_NOT_FOUND);
        }

        //密码比对
        // 对前端传过来的明文密码进行MD5加密
        password = DigestUtils.md5DigestAsHex(password.getBytes());
        if (!password.equals(employee.getPassword())) {
            //密码错误
            throw new PasswordErrorException(MessageConstant.PASSWORD_ERROR);
        }

        if (Objects.equals(employee.getStatus(), StatusConstant.DISABLE)) {
            //账号被锁定
            throw new AccountLockedException(MessageConstant.ACCOUNT_LOCKED);
        }

        //3、返回实体对象
        return employee;
    }
    /*
     * 新增员工
     *
     */
    public void save(EmployeeDTO employeeDTO) {
        System.out.println("当前线程的ID是"+Thread.currentThread().getId());
        Employee employee = new Employee();
       // employee.setName(employeeDTO.getName());
        //对象属性拷贝
        BeanUtils.copyProperties(employeeDTO,employee);
        //设置帐号状态
        employee.setStatus(StatusConstant.ENABLE);
        //设置密码。默认密码123456
        employee.setPassword(DigestUtils.md5DigestAsHex(PasswordConstant.DEFAULT_PASSWORD.getBytes()));
        //设置当前记录创建时间
        // employee.setCreateTime(LocalDateTime.now());
        //employee.setUpdateTime(LocalDateTime.now());
        //设置当前目录创建人id和修改人id
        //employee.setCreateUser(BaseContext.getCurrentId());
        //employee.setUpdateUser(BaseContext.getCurrentId());
        employeeMapper.insert(employee);

    }

    /**
     * 分页查询
     * @param employeePageQueryDTO
     * @return
     */
    public PageResult PageQuery(EmployeePageQueryDTO employeePageQueryDTO){
        //select * from employee limit 0,10
        //开始分页查询
        PageHelper.startPage(employeePageQueryDTO.getPage(),employeePageQueryDTO.getPageSize());
        Page<Employee> page=employeeMapper.pageQuery(employeePageQueryDTO);
        long total = page.getTotal();
        List<Employee> records=page.getResult();
        return new PageResult(total,records);
    }

    /**
     * 启用禁用员工账号
     * @param status
     * @param id
     */
    public void startOrStop(Integer status,Long id){
        //update employee set stutus = ? where id = ?
        /*Employee employee = new Employee();
        employee.setId(id);
        employee.setStatus(status);

*/
        Employee employee = Employee.builder()
                .status(status)
                .id(id)
                .build();

        employeeMapper.update(employee);
    }

    /**
     * 根据id查询员工信息
     * @param id
     * @return
     */
    public Employee getById(Long id){
        Employee employee = employeeMapper.getById(id);
        employee.setPassword("****");
    return employee;
    }

    /**
     * 编辑员工信息
     * @param employeeDTO
     */
    public void update(EmployeeDTO employeeDTO) {
    Employee employee = new Employee();
    BeanUtils.copyProperties(employeeDTO,employee);
    //employee.setUpdateTime(LocalDateTime.now());
    //employee.setUpdateUser(BaseContext.getCurrentId());
    employeeMapper.update(employee);

    }
}
